CN217857584U

CN217857584U - Hydrogen control device of sodium cleaning equipment

Info

Publication number: CN217857584U
Application number: CN202221285512.3U
Authority: CN
Inventors: 陈瑞; 肖振兴; 郑琳琳; 乐宇; 奚群; 徐伟强
Original assignee: Cnnc Xiapu Nuclear Power Co ltd; Zhonghe Longyuan Technology Co ltd
Current assignee: Cnnc Xiapu Nuclear Power Co ltd; Zhonghe Longyuan Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-11-22
Anticipated expiration: 2032-05-25

Abstract

The utility model provides a sodium cleaning equipment's hydrogen controlling means, include: the hydrogen control mechanism comprises a control device body and a display which are electrically connected, the control device body is fixedly connected in the inner cavity of the electric control cabinet, and the display is fixedly connected at the outer end of the control device body; the top end of the shell cover is provided with an air circulation mechanism, the air circulation mechanism comprises an exhaust pipe, a hydrogen sensor and a fan, the exhaust pipe and the fan are arranged at the top end of the shell cover at intervals, and the hydrogen sensor is fixedly connected in an inner cavity of the exhaust pipe; and the steam generator is electrically connected with the control device body and the hydrogen sensor. The device provided by the utility model reduces the hydrogen content of the inner cavity of the instrument, and then avoids the explosion of the instrument.

Description

Hydrogen control device of sodium cleaning equipment

Technical Field

The utility model relates to a sodium cleaning equipment technical field especially relates to a sodium cleaning equipment's hydrogen controlling means.

Background

Sodium is a chemical element, and sodium simple substance cannot exist in the earth nature, and can only exist in compounds because sodium can be rapidly oxidized in the air and reacts violently with water. In industrial production, sodium oxide and a small amount of metallic sodium substances are often attached to the outer end of the equipment, so a sodium cleaning device is often adopted to clean the metallic sodium and the sodium oxide at the outer end of the equipment.

However, high-temperature water vapor is adopted in a traditional metal sodium cleaning mode, strong chemical reaction can occur after metal sodium contacts water, hydrogen is generated, the hydrogen content in the closed container exceeds a certain limit, explosion can be generated, the hydrogen explosion range is wide, the danger is high, instrument damage can be caused, and the safety of operators can be threatened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art defect, thereby provide a sodium cleaning equipment's hydrogen controlling means, adopt hydrogen control mechanism to detect the hydrogen content of instrument inner chamber at any time, when reaching the explosion point of hydrogen, hydrogen control mechanism just can terminate steam generator's operation, thereby prevent water to continue to react with metallic sodium, make the device only carry out gas circulation exchange, when preventing hydrogen and producing, reduce the hydrogen content of instrument inner chamber, and then avoid the instrument to explode.

In order to achieve the above object, the present invention provides the following technical solutions:

a hydrogen control device for a sodium cleaning apparatus, comprising:

the hydrogen control mechanism comprises a control device body and a display which are electrically connected, the control device body is fixedly connected in the inner cavity of the electric control cabinet, and the display is fixedly connected at the outer end of the control device body;

the top end of the shell cover is provided with an air circulation mechanism, the air circulation mechanism comprises an exhaust pipe, a hydrogen sensor and a fan, the exhaust pipe and the fan are arranged at the top end of the shell cover at intervals, and the hydrogen sensor is fixedly connected in an inner cavity of the exhaust pipe; and

and the steam generator is electrically connected with the control device body and the hydrogen sensor.

As a practical manner, the cross section of the exhaust pipe is Y-shaped.

As an implementation manner, the exhaust pipe is fixedly connected to one side of the top end of the housing cover, and the fan is arranged on the other side of the top end of the housing cover.

As an implementation manner, the two fans are provided, and the two fans are symmetrical about the top end of the shell cover.

As a practical way, the outer end of the control device body is fixedly connected with an alarm, and the alarm is electrically connected with the control device body.

As an implementation mode, the outer end of the control device body is fixedly connected with a work indicator light, and the work indicator light is electrically connected with the control device body.

As an implementable mode, the outer end of the electric control cabinet is hinged with a cabinet door.

As an implementation mode, a hydrogen concentration detection device is arranged in an inner cavity of the hydrogen sensor, one end of the hydrogen concentration detection device is electrically connected with a correction device, and the correction device is electrically connected with the steam generator.

Compared with the prior art, the utility model provides a sodium cleaning equipment's hydrogen controlling means has following beneficial effect:

through the hydrogen sensor that sets up, the hydrogen sensor detects the hydrogen content in the blast pipe combustion gas at any time, when hydrogen content is less than 4%, steam generator and air cycle mechanism continue work, when hydrogen content more than or equal to 4% among the gas vent exhaust gas, steam generator stops work, only move air cycle mechanism, utilize the outside exhaust of blast pipe and the inside air extraction of fan, make the hydrogen concentration in the instrument inner chamber reduce rapidly, thereby avoid the instrument explosion, through the gas cycle exchange, the concentration of hydrogen is less than 4% after, the controlling means body restarts steam generator and washs the metallic sodium of device outer end, on the one hand, the security performance of instrument improves, on the other hand can control the abluent beginning of metallic sodium and end the operation at any time, and then do not influence the washing rate of device.

Further, through the siren that sets up, when the hydrogen content in the instrument exceeded the limit, the siren began to report to the police, the siren plays the effect of reminding, if the siren reports to the police for a long time and surpasses after the certain time, operating personnel then can in time carry out the work of salvageing, if the gas exchange through air cycle mechanism makes the hydrogen content in the instrument reduce to the limit below, then report to the police and remove, the security performance of instrument itself has been strengthened in the existence of siren, through the work pilot lamp that sets up, the work pilot lamp can be at any time fed back the operating condition of instrument, thereby detect at any time whether the instrument normally operates.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a hydrogen control device of a sodium cleaning apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal mechanism of an electric control cabinet provided in an embodiment of the present invention;

fig. 3 is a schematic structural view of an exhaust pipe according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a hydrogen sensor according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a system according to an embodiment of the present invention.

Description of the reference numerals:

1. an electric control cabinet; 2. a shell cover; 3. a hydrogen control mechanism; 301. a control device body; 302. a display; 4. an air circulation mechanism; 401. an exhaust pipe; 402. a hydrogen sensor; 403. a fan; 5. a steam generator; 6. an alarm; 7. a work indicator light; 8. and a cabinet door.

Detailed Description

Although the hydrogen control device of the sodium cleaning apparatus of the present invention can be implemented in many different ways, the exemplary embodiments will be described in detail herein with reference to the accompanying drawings, and it is understood that the description herein should be considered as an example of the structure of the hydrogen control device of the sodium cleaning apparatus, and is not intended to limit the scope of the present invention to the exemplary embodiments. Accordingly, the drawings and description of the specific embodiments are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like herein indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The following is a detailed description of the preferred embodiments.

As shown in fig. 1 to 5, the utility model provides a sodium cleaning equipment's hydrogen controlling means, including automatically controlled cabinet 1, cap 2 and steam generator 5, the inner chamber fixedly connected with hydrogen control mechanism 3 of automatically controlled cabinet 1, hydrogen control mechanism 3 includes controlling means body 301, display 302, controlling means body 301 fixed connection is in the inner chamber of automatically controlled cabinet 1, display 302 fixed connection is in the outer end of controlling means body 301, and electric connection between display 302 and the controlling means body 301, the end top of cap 2 is equipped with air circulation mechanism 4, air circulation mechanism 4 includes blast pipe 401, hydrogen sensor 402 and fan 403, blast pipe 401 fixed connection is in top one side of cap 2, hydrogen sensor 402 fixed connection is in the inner chamber of blast pipe 401, fan 403 locates the opposite side on cap 2 top, steam generator 5, electric connection between hydrogen sensor 402 and the controlling means body 301.

When the hydrogen concentration in the inner cavity of the instrument does not exceed the limit, the steam generator 5 continuously generates water vapor to clean the metal sodium at the outer end of the cleaning device, meanwhile, the exhaust pipe 401 continuously exhausts the gas in the instrument to the outside, meanwhile, the fan 403 pumps the outside air into the inner cavity of the instrument, and the gas in the inner cavity of the instrument is continuously exchanged with the outside air, so that the situation that the hydrogen generated by the reaction of the metal sodium and the water exceeds the explosion point of the closed instrument is prevented, when the hydrogen concentration in the inner cavity of the instrument is between the limit value of the hydrogen content or exceeds the limit value, the control device body 301 closes the operation of the steam generator 5, at the moment, only the exhaust pipe 401 and the fan 403 are operated, and the gas in the inner cavity of the instrument and the outside gas are continuously exchanged, so that the hydrogen content in the inner cavity of the instrument is further prevented from explosion of the instrument, when the hydrogen concentration of the gas in the gas circulation exchange is lower than 4%, the control device body 301 restarts the metal sodium at the outer end of the cleaning device 5 to clean the metal sodium at any time, on the one hand, the other hand, the start and the operation of the metal sodium can be controlled at any time, and the cleaning rate of the hydrogen in the inner cavity of the instrument can be conveniently known by personnel at any time.

In other embodiments, the exhaust duct 401 has a Y-shaped cross section, and two fans 403 are provided, the two fans 403 being symmetrical about the top end of the housing cover 2.

The exhaust rate of instrument inner chamber air has been strengthened to blast pipe 401 of Y shape, and the rate that the external gas entered into the instrument inner chamber has been accelerated to two fans 403 that set up, and blast pipe 401 and fan 403's combination is used for the exchange rate of the gas of instrument inner chamber and external air improves, thereby makes the hydrogen content of instrument inner chamber reduce rapidly, and then has improved the security performance of instrument body.

In other embodiments, the alarm 6 is fixedly connected to the outer end of the control device body 301, and the alarm 6 is electrically connected to the control device body 301.

When the hydrogen content in the instrument exceeds the limit, the alarm 6 starts to give an alarm, the alarm 6 plays a role in reminding, if the alarm 6 is used for alarming for a period of time exceeding a certain time, an operator can timely carry out emergency repair work, if the hydrogen content in the instrument is reduced to be below the limit through the gas exchange of the air circulation mechanism 4, the alarm is released, and the safety performance of the instrument is enhanced by the alarm 6.

In other embodiments, the outer end of the control device body 301 is fixedly connected with the working indicator light 7, and the working indicator light 7 is electrically connected with the control device body 301.

The working state of the instrument can be fed back at any time through the arranged working indicator lamp 7, so that whether the instrument normally operates or not can be detected at any time, when the working indicator lamp 7 is turned on, the normal operation of the device is indicated, if the working indicator lamp 7 flickers, the operation of the device is indicated to be in a fault state, and if the working indicator lamp 7 is turned off, the operation of the device is indicated to be stopped.

In other embodiments, the outer end of the electric control cabinet 1 is hinged with a cabinet door 8.

The cabinet door 8 that sets up is convenient for protect the controlling means body 301 of 1 inner chamber of automatically controlled cabinet, can prevent on the one hand that operating personnel mistake from touching, and on the other hand can be dustproof, dampproofing.

In other embodiments, the hydrogen sensor 402 has a hydrogen concentration detection device disposed in the inner cavity thereof, and one end of the hydrogen concentration detection device is electrically connected to a calibration device, which is electrically connected to the steam generator 5. It should be noted that the hydrogen concentration detection device and the correction device are concentration detection devices and corresponding correction devices commonly used in the prior art.

Hydrogen sensor 402 detects in transmitting the hydrogen content of blast pipe 401 mouth of pipe department to hydrogen concentration detection device, data rethread correcting unit after detecting corrects, avoid detecting data mistake, when hydrogen concentration more than or equal to 4%, thereby controlling means body 301 closes steam generator 5 and prevents to treat the metallic sodium and the steam reaction of belt cleaning device outer end and continue to produce hydrogen, after gas replacement, when the hydrogen concentration that detects is less than 4%, controlling means body 301 reopens steam generator 5 and treats the metallic sodium of belt cleaning device outer end and wash.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A hydrogen control device of a sodium cleaning device, comprising:

the hydrogen control device comprises an electric control cabinet (1), wherein a hydrogen control mechanism (3) is fixedly connected to an inner cavity of the electric control cabinet (1), the hydrogen control mechanism (3) comprises a control device body (301) and a display (302) which are electrically connected, the control device body (301) is fixedly connected to the inner cavity of the electric control cabinet (1), and the display (302) is fixedly connected to the outer end of the control device body (301);

the top end of the shell cover (2) is provided with an air circulation mechanism (4), the air circulation mechanism (4) comprises an exhaust pipe (401), a hydrogen sensor (402) and a fan (403), the exhaust pipe (401) and the fan (403) are arranged at the top end of the shell cover (2) at intervals, and the hydrogen sensor (402) is fixedly connected into an inner cavity of the exhaust pipe (401); and

and a steam generator (5) electrically connected to the control device body (301) and the hydrogen sensor (402).

2. The hydrogen control device of sodium cleaning equipment according to claim 1, characterized in that the cross section of the exhaust pipe (401) is Y-shaped.

3. The hydrogen control device of the sodium cleaning equipment as claimed in claim 1, wherein the exhaust pipe (401) is fixedly connected to one side of the top end of the shell cover (2), and the fan (403) is arranged on the other side of the top end of the shell cover (2).

4. A hydrogen control device for sodium cleaning equipment according to claim 3, characterized in that the number of the fans (403) is two, and the two fans (403) are symmetrical about the top end of the shell cover (2).

5. The hydrogen control device of the sodium cleaning equipment as claimed in claim 1, wherein the outer end of the control device body (301) is fixedly connected with an alarm (6), and the alarm (6) is electrically connected with the control device body (301).

6. The hydrogen control device of the sodium cleaning equipment according to claim 1, wherein the outer end of the control device body (301) is fixedly connected with a work indicator lamp (7), and the work indicator lamp (7) is electrically connected with the control device body (301).

7. The hydrogen control device of the sodium cleaning equipment according to claim 1, characterized in that the outer end of the electric control cabinet (1) is hinged with a cabinet door (8).

8. The hydrogen control device of the sodium cleaning equipment according to claim 1, wherein the inner cavity of the hydrogen sensor (402) is provided with a hydrogen concentration detection device, one end of the hydrogen concentration detection device is electrically connected with a correction device, and the correction device is electrically connected with the steam generator (5).